Asclepias 'Soulmate'
Asclepias 'Soulmate'
Asclepias 'Soulmate'
Asclepias 'Soulmate'
Asclepias 'Soulmate'
Asclepias 'Soulmate'
Asclepias 'Soulmate'

Asclepias 'Soulmate'

"Swamp milkweed"

Asclepias 'Soulmate'

5 bare roots — £7.90

Spring planting season is currently closed 
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Delivery schedule

Orders placed until 29 February 2025
You can expect your order in February/March 2025

Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025

Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days

Available for (pre)ordering again in December
Free delivery on UK orders over £50
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UK orders over £50
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UK orders under £50
£4.99

Northern Ireland orders under £50
£5.99

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Description

Once you have Ascelpias 'Soulmate' in your garden you’ll treasure it forever, just like a best friend! This lovely form of the American wildflower known as swamp milkweed has so much going for it. For starters, it attracts all kinds of butterflies, bees and beneficial insects to the garden, who flock to it all summer long to sip its potent nectar. It’s also a lovely addition to borders, wildflower meadows and pond areas, forming a good-sized clump with attractive, linear deep-green leaves and very pretty clusters of flowers, each one an intricate work of miniature deep rose-pink petals with a soft pinkish white heart. On top of that, the blooms of Ascelpias 'Soulmate' smell divinely sweet, giving off notes of vanilla in the summer breeze. Growing up to around 60cm tall, the long stems and lasting flower power makes it a fantastic cut flower too, so why not bring the fragrance indoors?  

The great thing about swamp milkweed is that it’s very adaptable and resilient, making it easy to grow and trouble-free once established. You can plant Ascelpias incarnata 'Soulmate' in wetter areas of the garden or in clay soils, as the swampy element of its common name indicates, but it’s equally happy in ordinary free-draining garden soils. Before planting into more challenging soil types, it’s a good idea to give Ascelpias 'Soulmate' a gentle start in temporary pots to grow on for a few months before planting out into the garden. You can grow it in groups in a border, where it looks great with other summer flowering perennials such as Monarda, Echinacea and maybe even a butterfly bush (Buddleja) and some scabious to create a nectar-bar for the insects.  

Key features

  • Perfect for pots

  • Comes back every year

  • Loved by pollinators

  • Thrives well in full sun

  • In peat-free compost

  • Low maintenance

  • RHS Award (AGM)

  • Fully hardy

Specs & details

  • Botanical name

    Asclepias incarnata 'Soulmate'

  • Flower colour

    Pink

  • Plant size

    1

  • Established height

    50cm-1m

  • Established spread

    10-50cm

  • Plant spacing

    10 plants per m2

  • Leaf colour

    Green

  • Habit

    Upright
    Clump-forming

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    1-2 years

  • Sunlight

    Full sun
    Partial shade

  • Position

    Sheltered

  • Suitable for

    Pots
    Water gardens
    Cottage gardens
    Low maintenance gardens

  • Soil acidity

    Any

  • Soil moisture

    Damp

  • Soil type

    Clay
    Loam
    Multipurpose compost
    Loam-based compost

  • Growing skill

    Easy to grow

  • Scented

    No

  • Pollinator-friendly

    Yes

  • Mouse resistant

    No

  • Rabbit resistant

    No

  • Deer resistant

    No

  • Toxicity

    No report

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Useful information

    • Soak the Asclepias 'Soulmate' roots in water for 3-6 hours prior to planting

    • Plant your "Swamp milkweed" bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors

    • Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed. Some varieties are a length of root which should be planted lengthways and shallowly (1-2cm deep).

    • Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.

    Read all planting & care instructions

  • Orders placed until 29 February 2025
    You can expect your order in February/March 2025

    Orders placed 1 March - 15 April 2025
    You can expect your order in March/April 2025

    Orders placed 16 April - 15 May 2025
    You can expect your order within 10 business days

Perennials in 1 minute

The beauty of perennial plants doesn’t just lie in their long-lasting flowers and sturdy, resilient nature, but it’s their sheer determination to keep on coming back stronger every year —in year one they’re good, but in future years they’re even better!

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